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Treatment optimization of locally advanced and metastatic pancreatic cancer (Review).

ABSTRACT: Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal malignant tumor types, being the sixth leading cause of mortality worldwide and the fourth in Europe. Globally, it has a mortality/incidence ratio of 98%, and the 5‑year survival rate in Europe is only 3%. Although risk factors, such as obesity, diabetes mellitus, smoking, alcohol consumption and genetic factors, have been identified, the causes of PDAC remain elusive. Additionally, the only curative treatment for PDAC is surgery with negative margins. However, upon diagnosis, ~30% of the patients already present with locally advanced disease. In these cases, a multidisciplinary approach is required to improve disease‑related symptoms and prolong patient survival. In the present article, a comprehensive review of PDAC epidemiology, physiology and treatment is provided. Moreover, guidelines on patient treatment are suggested. Among the different available therapeutic options for the treatment of advanced PDAC, results are modest, most likely due to the complexity of the disease, and so the prognostic remains poor. Molecular approaches based on multi‑omics research are promising and will contribute to groundbreaking personalized medicine. Thus, economic investment that promotes research of pancreatic cancer will be critical to the development of more efficient diagnostic and treatment strategies.

SUBMITTER: Barros AG

PROVIDER: S-EPMC8651228 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:Pancreatic ductal adenocarcinoma (PDAC) is currently ranked fourth place of cancer related mortality. Only a minority of 10-20% of patients with PDAC have a primarily resectable disease, while 50-60% of the patients are diagnosed with irresectable disease. A certain group of patients is defined as "borderline resectable", which is mainly relied to contact of the tumor to major abdominal vessels. For preoperative evaluation of resectability CT and MRI is commonly used. Although CT-scanning, which is the standard preoperative imaging modality, has striking limitations concerning evaluation of lymph node status as well as vessel involvement and approximately 20% of the patients are staged incorrectly. A central part of modern therapy of locally advanced or not primarily resectable PDAC is neoadjuvant therapy. Especially neoadjuvant chemotherapy according to the FOLFIRINOX protocol resulted in high resection rates of initially not resectable patients. Furthermore, treatment with FOLFIRINOX was shown to be an independent predictor of improved prognosis and resection after neoadjuvant treatment with FOLFIRINOX was associated with improved survival. Neoadjuvant treatment was able to increases the rates of R0 resection, which depicts an independent prognostic factor and FOLFIRINOX outmatched other treatment regimes (e.g., gemcitabine-based radio-chemotherapy) concerning achievement of a R0 resection. While most evidence of neoadjuvant treatment of PDAC is conferred by retrospective analysis, there is growing data from randomized controlled trials, confirming the beneficial effects of neoadjuvant therapy on the prognosis of PDAC. Thus, patients with borderline resectable and locally advanced PDAC should be evaluated for neoadjuvant treatment. If there is no progression of the disease during neoadjuvant treatment exploration with the goal of R0 resection should be performed. If possible, patients should be included in well-designed randomized controlled trials at specialized pancreatic centers.

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Treatment optimization of locally advanced and metastatic pancreatic cancer (Review).

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